HomePeople Biography and filmographyMari Watanabe Biography unavailable on TMDB. Movies (4)TV shows (0) Photos Movies (4) Ginza Jungle Girl1961 · Mari Yamanaka (Akiko's younger sister, Singer) Lord Mito: Struggle of Suke and Kaku1961 Dodonpa suikoden1961 Tōkyō dodonpa musume1961 TV shows (0) No credits available.